diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 37b68448c..efd7d2314 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -27,7 +27,7 @@ jobs:
   build:
     name: ${{ matrix.OS_NAME }} (${{ matrix.configuration }})
     runs-on: ${{ matrix.os }}
-    timeout-minutes: ${{ vars.JOB_TIMEOUT }}
+    timeout-minutes: ${{ fromJSON(vars.JOB_TIMEOUT) }}
     strategy:
       matrix:
         os: [ubuntu-latest, macOS-latest, windows-latest]
@@ -110,7 +110,7 @@ jobs:
   build_macos:
     name: macOS Universal (${{ matrix.configuration }})
     runs-on: ubuntu-latest
-    timeout-minutes: ${{ vars.JOB_TIMEOUT }}
+    timeout-minutes: ${{ fromJSON(vars.JOB_TIMEOUT) }}
     strategy:
       matrix:
         configuration: [ Debug, Release ]
diff --git a/.github/workflows/flatpak.yml b/.github/workflows/flatpak.yml
index 96bc77e16..d4380e05f 100644
--- a/.github/workflows/flatpak.yml
+++ b/.github/workflows/flatpak.yml
@@ -12,7 +12,7 @@ concurrency: flatpak-release
 
 jobs:
   release:
-    timeout-minutes: ${{ vars.JOB_TIMEOUT }}
+    timeout-minutes: ${{ fromJSON(vars.JOB_TIMEOUT) }}
     runs-on: ubuntu-latest
 
     env:
diff --git a/.github/workflows/nightly_pr_comment.yml b/.github/workflows/nightly_pr_comment.yml
index c7af4acad..deabae670 100644
--- a/.github/workflows/nightly_pr_comment.yml
+++ b/.github/workflows/nightly_pr_comment.yml
@@ -7,7 +7,7 @@ jobs:
   pr_comment:
     if: github.event.workflow_run.event == 'pull_request' && github.event.workflow_run.conclusion == 'success'
     runs-on: ubuntu-latest
-    timeout-minutes: ${{ vars.JOB_TIMEOUT }}
+    timeout-minutes: ${{ fromJSON(vars.JOB_TIMEOUT) }}
     steps:
       - uses: actions/github-script@v6
         with:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 4018facab..98ba34822 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -46,7 +46,7 @@ jobs:
   release:
     name: Release ${{ matrix.OS_NAME }}
     runs-on: ${{ matrix.os }}
-    timeout-minutes: ${{ vars.JOB_TIMEOUT }}
+    timeout-minutes: ${{ fromJSON(vars.JOB_TIMEOUT) }}
     strategy:
       matrix:
         os: [ ubuntu-latest, windows-latest ]
@@ -144,7 +144,7 @@ jobs:
   macos_release:
     name: Release MacOS universal
     runs-on: ubuntu-latest
-    timeout-minutes: ${{ vars.JOB_TIMEOUT }}
+    timeout-minutes: ${{ fromJSON(vars.JOB_TIMEOUT) }}
     steps:
       - uses: actions/checkout@v3